Icom IC-7800 Service Manual Addendum page 495

• BOTTOM VIEW (DSP-TX BOARD)
J921
1 AFIN ANVOX 2
GND GND
TX36K GND
GND GND
+A5VT +A5VT
GND GND
-12V -12V
GND GND
+D5VT +D5VT
GND GND
+15V +15V 22
11
to the MAIN unit J380
90 85 80 75 70 65 60 55
1
16
50 45 40 35 30
Horizontal
32
17
25 20 15 10 5
8 - 18
50
45
40
35
J961
2
1 GND1T GND1T
GND1T MCLK
30
DRES DSPCK
DSKY DSPR
CTFL DFRT
DAVOX DSPCK
CVOX DX1T
25
FRWT DFXT
GND1T GND1T
D3R3V D3R3V
GND1T GND1T
D1R2V_T D1R2V_T
20
D1R2V_SENS_T D1R2V_T
GND1T GND1T
29 GND1T GND1T
30
to the MAIN unit J381
15
10
5
0
0